body {
    min-width: 320px;
    max-width: 540px;
    margin: 0 auto;
    background-color: #fff;
    // font-size: 14px;
    font-size: 0.373333rem;
    color: #666;
    line-height: 1.5;
    font-family: -apple-system,Helvetica,sans-serif;
  }
  /*点击高亮我们需要清除清除 设置为transparent 完成透明*/
  *{
    -webkit-tap-highlight-color: transparent;
  }
  /*在移动端浏览器默认的外观在iOS上加上这个属性才能给按钮和输入框自定义样式*/
  input{
    -webkit-appearance: none;
  }
  /*禁用长按页面时的弹出菜单*/
  img,a { -webkit-touch-callout: none; }

button, dd, dl, dt, fieldset, form, h1, h2, h3, h4, h5, h6, hr, input, legend, li, ol, p, pre, td, textarea, th, ul,
img{
    margin: 0;
    padding: 0;
} 
ul,
ol {
    list-style: none;
}
a{
    text-decoration: none;
} 
@media screen and (min-width: 540px) {
  html {
      font-size: 54px!important;
  }
}
  